Modifying the Cu(111) Shockley surface state by Au alloying

نویسندگان

  • Z. M. Abd El-Fattah
  • M. Matena
  • M. Corso
  • M. Ormaza
  • J. E. Ortega
  • F. Schiller
چکیده

Z. M. Abd El-Fattah,1,2 M. Matena,2 M. Corso,2,3 M. Ormaza,4 J. E. Ortega,1,2,4 and F. Schiller1,2 1Centro de Fı́sica de Materiales (CSIC-UPV-EHU) and Materials Physics Center (MPC), E-20018 San Sebastián, Spain 2Donostia International Physics Center, Paseo Manuel Lardizábal 4, E-20018 Donostia–San Sebastián, Spain 3IKERBASQUE, Basque Foundation for Science, E-48011 Bilbao, Spain 4Departamento de Fı́sica Aplicada I, Universidad del Paı́s Vasco, E-20018 San Sebastián, Spain (Received 9 October 2012; revised manuscript received 29 November 2012; published 17 December 2012)

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Characterizing the wetting of metallic thin films with angle-resolved photoelectron spectroscopy

The wetting of thin Ag films on Cu 111 is characterized in detail with angle-resolved photoelectron spectroscopy. After constructing disordered Ag films on Cu 111 , we monitored the evolution of their layer-resolved Shockley states during wetting. Our results provide the first observation of a transitional state, which implies a coexistence of clean Cu 111 , 1 ML of Ag on Cu 111 , and 2 ML of A...

متن کامل

Link between adatom resonances and the Cu(111) Shockley surface state.

Low-temperature scanning tunneling microscopy and spectroscopy at 7 K was used to assemble and characterize native adatom islands of successive size on the Cu(111) surface. Starting from the single adatom we observe the formation of a series of quantum states which merge into the well known two-dimensional Shockley surface state in the limit of large islands. Our experiments reveal a natural ph...

متن کامل

Response of the Shockley surface state to an external electrical field : A density - functional theory study of Cu ( 111 )

The response of the Cu(111) Shockley surface state to an external electrical field is characterized by combining a density-functional theory calculation for a slab geometry with an analysis of the Kohn-Sham wave functions. Our analysis is facilitated by a decoupling of the Kohn-Sham states via a rotation in Hilbert space. We find that the surface state displays isotropic dispersion, quadratic u...

متن کامل

9 O ct 2 00 9 Band selection and disentanglement using maximally - localized Wannier functions : the cases of Co impurities in bulk copper and the Cu ( 111 ) surface

We have adapted the maximally-localized Wannier function approach of [I. Souza, N. Marzari and D. Vanderbilt, Phys. Rev. B 65, 035109 (2002)] to the density functional theory based Siesta method [J. M. Soler et al., J. Phys.: Cond. Mat. 14, 2745 (2002)] and applied it to the study of Co substitutional impurities in bulk copper as well as to the Cu (111) surface. In the Co impurity case, we have...

متن کامل

Fine tuning of spin-orbit splitting in Ag ultrathin films deposited on Au(111)

Due to their surface localization, sp-derived Shockley states have been shown to be a unique spectroscopic probe of surface phenomena [1]. In particular, any perturbation of the surface like gas adsorption [2], lateral confinement [3], or surface reconstruction [4] should influence the free-electron like surface state parameters : band minimum, effective mass and lifetime. For exemple, by compa...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012